An enigmatic, mysterious man dubbed the 'seventh Python' is suing the stars of Monty Python for the cash they made while performing in the musical, Spamalot, a spin off from Monty Python And The Holy Grail, Sky News reports. 

Mark Forstater - who is much less enigmatic now we know his name - is the man behind the case, which is to be heard over 5 days. He - the producer of the 1975 comedy hit - claims that he is due more money from the musical spin off. The court heard that "for financial purposes" Mr Forstater should be treated as "the seventh Python". Posters for the musical call it "a new musical lovingly ripped off from the motion picture," and due to its fantastic success, the brand has been subject to numerous merchandising opportunities, which has boosted the Python's finances considerable, with Michael Palin describing it as his "pension plan". Mr Forstater is suing all five Pythons but John Cleese and Terry Gilliam, who live abroad are not expected to give evidence. The sixth member of the team, Graham Chapman, died in 1989.

The suit will cite an agreement made back in 1974, which will entitle Forstater to a great deal more money from the recent success of the brand. This enlarged figure is thought to be able to swell to £1m.